# Relationship history for MSHA mine 3500454

Current hierarchy: **George R  Foster; Tracy L  Foster → Alsea Quarries 1 LLC → Alsea Quarries**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Alsea Lumber Company → Alsea Quarries; 1950-01-01 to 1979-07-15; source msha-controller-operator-history
- **controller_controls_mine:** Norman  Sapp  et al → Alsea Quarries; 1950-01-01 to 1979-07-15; source msha-controller-operator-history
- **controller_controls_operator:** Norman  Sapp  et al → Alsea Lumber Company; 1950-01-01 to 1979-07-15; source msha-controller-operator-history
- **operator_operates_mine:** Philomath Construction Inc → Alsea Quarries; 1979-07-16 to 1981-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Hobin Leslie R → Alsea Quarries; 1979-07-16 to 1981-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Hobin Leslie R → Philomath Construction Inc; 1979-07-16 to 1981-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Alsea Quarries → Alsea Quarries; 1981-11-01 to 1997-11-18; source msha-controller-operator-history
- **controller_controls_mine:** Ray  Perin → Alsea Quarries; 1981-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ray  Perin → Alsea Quarries; 1981-11-01 to 1997-11-18; source msha-controller-operator-history
- **controller_controls_mine:** Lloyd S  Hockema → Alsea Quarries; 1990-01-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lloyd S Hockema Inc → Alsea Quarries; 1997-11-19 to 2000-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Lloyd S  Hockema → Lloyd S Hockema Inc; 1997-11-19 to 2000-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Alsea Quarries → Alsea Quarries; 2000-10-01 to 2010-04-08; source msha-controller-operator-history
- **controller_controls_operator:** Ray  Perin → Alsea Quarries; 2000-10-01 to 2010-04-08; source msha-controller-operator-history
- **operator_operates_mine:** Alsea Quarries 1 LLC → Alsea Quarries; 2010-04-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tracy L  Foster et al → Alsea Quarries; 2010-04-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tracy L  Foster et al → Alsea Quarries 1 LLC; 2010-04-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** George R  Foster et al → Alsea Quarries 1 LLC; 2010-04-09 to current/open; source msha-controller-operator-history